Category
page 1Constant width
Reuleaux triangle
Reuleaux polygon with three sides
Barbier's theorem
theorem that every curve of constant width has perimeter π times its width
curve of constant width
convex planar shape whose width is the same regardless of the orientation of the curve
Reuleaux tetrahedron
shape formed by intersecting four balls
Blaschke–Lebesgue theorem
Plane geometry theorem
regular Reuleaux polygon
curve of constant width
Surface of constant width
three-dimensional convex body whose width is the same in every direction